Medical Device Leak Sensing Devices, Methods, and Systems

    公开(公告)号:US20230338635A1

    公开(公告)日:2023-10-26

    申请号:US18218272

    申请日:2023-07-05

    IPC分类号: A61M1/36 G01M3/04

    摘要: Features for protecting against leaks in a fluid circuit are disclosed. In an embodiment, a first indicator of a leak is used to trigger confirmation by blood flow reversal and air detection in the blood circuit. A method for performing a blood treatment includes, at blood treatment machine, pumping blood to a patient through a first blood line. Further, at a controller of the blood treatment machine, a first signal is received, indicating a probability of a leak in the first blood line. Responsively to the first signal, the controller commands a leak verification operation and receives a second signal indicating whether a leak in the first blood line is verified. Further, a leak indicating signal is generated if the second signal indicates a leak is verified.

    Dialysis systems, devices, and methods

    公开(公告)号:US11433170B2

    公开(公告)日:2022-09-06

    申请号:US17403614

    申请日:2021-08-16

    IPC分类号: A61M1/28 A61M1/16 A61M25/00

    摘要: A treatment device system includes a treatment machine for generating a custom dialysis solution and including at least one fluid conveyor, the treatment machine having a controller, the controller having a first memory, configured to produce the custom dialysis solution by causing the at least one fluid conveyor to mix purified water and at least one concentrate. The system also includes a user interface and a water purifier in fluid communication with and providing the purified water to the treatment machine, the water purifier including an internal central controller, the internal central controller having a second memory, to control preparation of the purified water. A server is communicatively coupled with the treatment machine and a control line provides two way communication between the controller of the treatment machine and the internal central controller of the water purifier.

    Peritoneal dialysis systems, devices, and methods

    公开(公告)号:US10688234B2

    公开(公告)日:2020-06-23

    申请号:US15476015

    申请日:2017-03-31

    IPC分类号: A61M1/28 A61M1/16 A61M25/00

    摘要: A method of performing a peritoneal dialysis treatment includes connecting a disposable unit to a source of water. The disposable unit includes at least a first container holding a sterile concentrate containing an osmotic agent, a second container holding a sterile concentrate containing electrolytes, an empty sterile mixing container, and a tubing set with a pre-attached peritoneal fill/drain line. The method also includes receiving a prescription command by a controller, indicating at least the fill volume and desired final concentration of the osmotic agent to be used for a current fill cycle under said treatment, and pumping a quantity of the concentrated osmotic agent that is at least sufficient to achieve the desired final concentration into the mixing container. The contest of the mixing container are mixed, further diluted or concentrated, and then flowed to a patient.

    Peritoneal dialysis systems, devices, and methods

    公开(公告)号:US10603424B2

    公开(公告)日:2020-03-31

    申请号:US15476819

    申请日:2017-03-31

    IPC分类号: A61M1/28 A61M1/16 A61M25/00

    摘要: A disposable fluid circuit used in a medical device that performs peritoneal dialysis includes a peritoneal dialysis tubing set that has a connection tube with a connector for a peritoneal catheter at a distal end and a connector configured to connect to a peritoneal cycler at a proximal end. The circuit also includes a pressure pod at the distal end, the pressure pod being of the type that has a flow chamber for carrying a liquid and an air chamber separated from the flow chamber by a diaphragm and an air port in fluid communication with the air chamber. The flow chamber is connected in-line with a lumen of the connection tube and a length of tubing runs from the air-port along the length of the connection tube with a connector at the proximal end configured to connect to a pressure transducer.

    Medical device leak sensing devices, methods and systems

    公开(公告)号:US10525190B2

    公开(公告)日:2020-01-07

    申请号:US15655091

    申请日:2017-07-20

    IPC分类号: A61M1/36 G01M3/04

    摘要: Features for protecting against leaks in a fluid circuit are disclosed. In an embodiment, a first indicator of a leak is used to trigger confirmation by blood flow reversal and air detection in the blood circuit. A method for performing a blood treatment includes, at blood treatment machine, pumping blood to a patient through a first blood line. Further, at a controller of the blood treatment machine, a first signal is received, indicating a probability of a leak in the first blood line. Responsively to the first signal, the controller commands a leak verification operation and receives a second signal indicating whether a leak in the first blood line is verified. Further, a leak indicating signal is generated if the second signal indicates a leak is verified.